Опис
Current transformers T-0.66; T-0.66A are intended for transmission of measurement information signals to measuring, automation, signaling and control devices in alternating current electrical circuits with a frequency of 50 Hz or 60 Hz.
Current transformers T-0.66; T-0.66A meet the requirements of the Technical Regulations of legally regulated measuring equipment, approved by Resolution No. 94 of the Cabinet of Ministers of Ukraine dated 13.01.2016.
T-0.66 current transformers with a rated primary current of more than 300 A and T-0.66A current transformers of all designs meet the requirements of DSTU EN 61869-1, DSTU EN 61869-2 (the load of the secondary winding is in the range from 25% to 100% of the nominal load value).
T-0.66 current transformers with a rated current of up to 300 A inclusive (except for current transformers with an amorphous alloy core) are manufactured in accordance with the manufacturer’s technical specification (the load of the secondary winding is in the range from 75% to 100% of the value of the rated load).
Technical characteristics
|
Type, option constructive execution |
Nominal primary current strength, А |
Nominal secondary current strength, A |
Class accuracy |
The highest voltage, kV |
|
Т-0,66 |
5,10,20, 30, 40, 50,75,100,
150,200, 250, 300, 400, 500,600 |
5 | 0,2; 0,5S;
0,5; 1 |
0,72 |
|
Т-0,66А* |
400, 500, 600 | |||
| Т-0,66А** |
5, 10, 20, 30, 40, 50, 75, 100, 150, 200, 250, 300 |
|||
| * – at the customer’s request, it is possible to manufacture transformers with an amorphous alloy core.
** – transformers with an amorphous alloy core. |
||||
Rated secondary load with power factor соsj2 = 0,8 5 V×А.
Operating conditions:
- ambient air temperature from minus 45 °C to plus 40 °C;
- relative air humidity up to 98% at a temperature of plus 25 °C.
Weight, no more than 1.3 kg.
Mounting of current transformers is possible with the help of plates that are included in the delivery set or with the help of a Din-rail, which is supplied on a separate order.
Interval:
- transformers T-0.66 – 5 years;
- transformers T-0.66A – 16 years.
|
Implementation |
Tire size, IxC, mm |
Tire material |
Rotation of the tire around the longitudinal axis |
|
5/5 |
15х1,5 |
Copper |
|
|
10/5 |
15х1,5 |
Copper |
|
|
20/5 |
15х1,5 |
Copper |
– |
|
30/5 |
15х1,5 |
Copper |
– |
|
40/5 |
15х1,5 |
Copper |
– |
|
50/5 |
15х1,5 |
Copper |
– |
|
75/5 |
15х1,5 |
Copper |
– |
|
100/5 |
15х1,5 |
Copper |
– |
|
150/5 |
15х2 |
Copper |
– |
|
200/5 |
22х2 |
Copper |
– |
|
200/5 |
25х5 |
Aluminum |
+ |
|
250/5 |
25х6 |
Aluminum |
+ |
|
300/5 |
25х6 |
Aluminum |
+ |
|
400/5 |
25х8 |
Aluminum |
+ |
|
500/5 |
25х8 |
Aluminum |
+ |
|
600/5 |
25х8 |
Copper |
+ |
Overall, installation and connection dimensions of transformers T-0.66; T-0.66A
Overall, installation and connection dimensions of transformers T-0.66; T-0.66A
with a primary current of 600 A
In transformers T-0.66; T-0.66A versions 200/5, 250/5, 300/5, 400/5, 500/5, 600/5 A tire is installed in any position relative to the longitudinal axis. The transformer version 200/5 A, with the installation of the busbar in a vertical position, is manufactured by separate order.
